Black-colored, laser-writable blends of carbonate polymer and po

Details Black-colored, laser-writable blends of carbonate polymer and po Black-colored, laser-writable blends of carbonate polymer and po

1993-02-22

1994-04-05

Ryan, Patrick J.

Stock material or miscellaneous articles

Structurally defined web or sheet

Discontinuous or differential coating, impregnation or bond

428206, 428323, 428338, 428339, 428408, 428480, 428913, 430945, 346 76L, 3461351, 252962, 525439, B32B 300

Patent

active

053003500

ABSTRACT:
Laser-writable, black-colored blends of carbonate and polyester resins are provided by the incorporation of a black colorant formulation comprising carbon black and a fatty acid metal salt. Zinc stearate is a preferred fatty acid metal salt. The black-colored resin blends can be inscribed using standard YAG lasers and maintain an excellent balance of other properties including surface aesthetics, physical properties, heat resistance, chemical resistance and processability.

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patent: 4753863 (1988-06-01), Spanjer
patent: 4810733 (1989-03-01), Sakuma et al.
patent: 4859738 (1989-08-01), Farah et al.
patent: 4959406 (1990-09-01), Foltin et al.
patent: 5178930 (1993-01-01), Sakai et al.
patent: 5189091 (1993-02-01), Laughner

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